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Proof step 1 from proof sw-alloc-put (conclusion)
¬ r0 ∈ H, r0 ≠ null, r1 ∈ H ⊦ r0 ≠ r1 → (H ++ r0)[r0, o0][r1, o1] = (H[r1, o1] ++ r0)[r0, o0]
System applied rule normalize
And obtained the following new goals
Proof step 2
:
r1 ∈ H ⊦ (H ++ r0)[r0, o0][r1, o1] = (H[r1, o1] ++ r0)[r0, o0], r0 = r1, r0 = null, r0 ∈ H
Rule argument
Additional information